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klemol [59]
3 years ago
12

WRITE THE ELECTRONIC CONFIGURATION OF THE FOLLOWING ELEMENT

Chemistry
1 answer:
Sloan [31]3 years ago
7 0

Answer:WHAT IS THE ELEMENT NAME?

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If 5.58 g of iron reacts with sulfur to produce 8.79 g of iron sulfide, what is the mass of reacting sulfur? A) 3215 B) 14:37 C)
gogolik [260]

Answer: A) 3.21 g

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.

Fe+S\rightarrow FeS

We are given:

Mass of iron = 5.58 g

Mass of iron sulphide = 8.79 g

Mass of sulphur = x g

Total mass on reactant side = 5.58 + x

Total mass on product side = 8.79 g

Applying law of conservation of mass, we get:

5.58+x=8.79\\\\x=3.21g

Hence, the mass of reacting sulfur is 3.21 g.

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3 years ago
James decided to do an experiment with a can of soda. He opened a 340 g can of soda and left it open for a day. The next day, he
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A - The can was open and gases were released.

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3 years ago
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Answer:

answer what ?

Explanation:

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3 years ago
Uranium has 146 neutrons; therefore its mass number is which of the following?
Vilka [71]
Its <span>234or238  hope dis helped</span>
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10. Make your own unique problem for your classmates to solve for the
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Answer:

Explanation:

<u>Problem</u>:

In a gender based experiment, the blood pressure of different ages of men is been checked and recorded to determine if there is any correlation. What will be the independent, dependent and controlled variables?

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A controlled variable is the variable that is left constant throughout the course of an experiment. The controlled variable here is the gender.

A dependent variable is the variable that is been determined or measured during the course of an experiment. The dependent variable here is the blood pressure.

An independent variable is the variable that is intentionally or decidedly altered during the course of an experiment. The independent variable here is the age.

3 0
3 years ago
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